The following issue has been SUBMITTED.
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http://www.cmake.org/Bug/view.php?id=14870
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Reported By: Melven Roehrig-Zoellner
Assigned To:
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Project: CMake
Issue ID: 14870
Category: CMake
Reproducibility: always
Severity: major
Priority: normal
Status: new
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Date Submitted: 2014-04-09 16:22 EDT
Last Modified: 2014-04-09 16:22 EDT
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Summary: FindMPI.cmake returns 32-bit libraries on 64-bit
systems for Fortran-only projects
Description:
Linker errors for pure Fortran projects using MPI because find_package(MPI)
adds a 32-bit library to MPI_Fortran_LIBRARIES.
This occurs with the PGI-Compilers, but could also affect other
compilers/MPI-versions.
This affects at least CMake 2.8.11 and 2.8.12
Steps to Reproduce:
Minimal CMakeLists-example:
project(test Fortran)
find_package(MPI REQUIRED)
message(STATUS ${MPI_Fortran_LIBRARIES})
For PGI-Fortran-Compilers:
This shows: [...]/usr/lib/librt.so
But must be: [...]/usr/lib64/librt.so
So Linking with MPI_Fortran_LIBRARIES produces linker errors.
In FindMPI.cmake system libraries are searched in /usr/lib and not in
/usr/lib64. One can circumvent this bug through enabling C/C++, but this is not
always an option (I only have a PGI Fortran License)
Additional Information:
Possible bugfix:
In FindMPI.cmake replace:
# add the compiler implicit directories because some compilers
# such as the intel compiler have libraries that show up
# in the showme list that can only be found in the implicit
# link directories of the compiler. Do this for C++ and C
# compilers if the implicit link directories are defined.
if (DEFINED CMAKE_CXX_IMPLICIT_LINK_DIRECTORIES)
set(MPI_LINK_PATH
"${MPI_LINK_PATH};${CMAKE_CXX_IMPLICIT_LINK_DIRECTORIES}")
endif ()
if (DEFINED CMAKE_C_IMPLICIT_LINK_DIRECTORIES)
set(MPI_LINK_PATH
"${MPI_LINK_PATH};${CMAKE_C_IMPLICIT_LINK_DIRECTORIES}")
endif ()
by the respective language-specific variant:
# add the compiler implicit directories because some compilers
# such as the intel compiler have libraries that show up
# in the showme list that can only be found in the implicit
# link directories of the compiler.
if (DEFINED CMAKE_${lang}_IMPLICIT_LINK_DIRECTORIES)
set(MPI_LINK_PATH
"${MPI_LINK_PATH};${CMAKE_${lang}_IMPLICIT_LINK_DIRECTORIES}")
endif ()
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Issue History
Date Modified Username Field Change
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2014-04-09 16:22 Melven Roehrig-ZoellnerNew Issue
2014-04-09 16:22 Melven Roehrig-ZoellnerFile Added: FindMPI.cmake
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